Answer:
Nitrogen cycle is a biogeochemical cycle that involves the circulation and conversion of nitrogen into different forms among the living and non-living components of the environment. The following are the steps in nitrogen fixation.
1 Nitrogen fixation.
2 Plants absorb nitrates and conduct assimilation.
3 Nitrogen flows through the food chain as a primary consumer eats the plant, and a secondary consumer eats the primary consumer.
4 A consumer releases waste and ammonification occurs to convert ammonia into nitrates and ammonium.
5 Nitrification occurs to convert ammonium into nitrates. Denitrification occurs to release nitrogen back to the atmosphere.